HH

Hiroshi Hirakouchi

TK Toyo Boseki Kabushiki Kaisha: 4 patents #173 of 1,085Top 20%
NS Nippon Steel: 3 patents #914 of 4,423Top 25%
Overall (All Time): #1,292,472 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5411810 Viscoelastic resin composition for a vibration damping material Masanori Nakamura, Takeshi Yatsuka, Nobuo Kadowaki 1995-05-02
5288813 Viscoelastic resin composition or vibration damping material Masanori Nakamura, Takeshi Yatsuka, Nobuo Kadowaki, Hiroshi Endoh, Yoshimasa Zama 1994-02-22
5183863 Viscoelastic resin composition for vibration-damping material Masanori Nakamura, Takeshi Yatsuka, Nobuo Kadowaki, Hiroshi Endoh 1993-02-02
4942219 Viscoelastic resin for vibration damping material and composition containing the same Takeshi Yatsuka, Seiji Yamazoe, Yutaka Mizumura, Hiroshi Endo, Nobuo Kadowaki 1990-07-17